David eobeege



{No Model.) D. ROBERGE Jr.

SPRING HORSESHOH.

'No. 300,899. Patented June 24, 1884.

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SPRlNG-HORSESHOE.

SPECIFICATION forming part of Letters Patent No. 300,899, dated June 24, 1884.

Application filed August 30, 1883. (No model.)

To all whom, it may concern:

Be it known that 1, DAVID Romance, Jr., a citizen of the United States, residing in the city of New York, in the county and State of New York, have invented new and useful Improvements in Spring-Horseshoes; and I hereby declare the following to be a full, clear, 4

formed from the same metal as the body of the shoe, in which latter case a longitudinal cut or slit is made on each side of the shoe to detach the portions forming the spring from the portion forming the body of the shoe.

In spring-shoes of the above form the spring has heretofore either been made of about the same thickness (vertically) throughout its entire length, or else made tapering by thinning the spring toward its rear end in straight lines on the upper and lower surfaces of the spring.

In either case the concussion occasioned by.

the foot coming in contact with the ground causes said spring to break at its junction with the body of the shoe; and the object of my improvement is to remedy this defect, which 1 accomplish by making the taper on a curved line, either on the upper or the under surface of the spring, so that the latter shall be comparatively thin about midway of its length, by which means the strain is more equally distributed over the entire length of the spring, and undue strain is removed from said point'of junction.

The invention consists in the improved con struction of the spring in a horseshoe of the above description, as hereinafter particularly described.

In the accompanying drawings, Figure 1 represents a plan View of a horseshoe with my improvements. Fig. 2 is a section of the same on the line 00 x, and Fig. 3 is a section of the same on the line y y.

Similar letters of reference indicate the same parts in all the several figures.

A represents the main body of the shoe, and

ranged in relation to the body of the shoe,

substantially as shownth at is to say, the said spring is set or swaged below the plane of the lower face of the shoe. In my improvement this spring I3 is made tapering, or reduced in thickness, from the point of junction (2 with the body Atoward its rear end or heel, c, and this taper is made in a curved line, eitheron the upper or the lower surface, as shown in the drawings, for the purpose above mentioned. T0 effect this the metal may either be removed from the under side of the spring, as shown in Fig. 3, or it may be removed from the up per side of the same, or partly from the upper side and partly from the under side; but in either case it is made on a curved line, the objeet being to taper it in such manner that when brought under pressure the strain shall be as nearly as possible equally divided along its entire length.

G is the clip, which may be formed by metal raised from the uppersurface of the shoe, near the toe, so as to keep the outer curve of the toe unbroken; but that I do not claim as part of my invention.

I do not claim as my invention a horseshoe provided with a spring set or swaged below the plane of the lower face of the shoe; nor do I claim a horseshoe having its sides divided longitudinally, so that the inner portions thereof form a spring; neither do I claim a tapering spring in a horseshoe, except as herein particularly specified.

IVhat I claim as my invention is In a spring-horseshoe having a spring formed within its interior circumference, and partly below the plane of the lower face of the shoe, a spring, B, made tapering by a curved line from its point of junction (1 with the body A toward its rear end or heel, c, as and for the purpose set forth.

DAVID ROBERGE, J R. lVitnesses:

- Jenn S. THORNTON,

E. B. OHADWIOK. 

